I am on the Sunshine Coast in Qld. Olly was perfect with people and all animals up until he was about 7 months old. At that time I was still in the Army and got deployed overseas for three months. When I got back he was no longer tolerant of other animals. I am able to get him to accept other dogs on a "one by one" basis but am unable to let him run off-lead anywhere he may come across another dog. I have never had any dominance issues with Olly, my ex-girlfriend did but even she had no problems with him if I was home. Thanks for the advice so far and it is all very welcome.